Nyob rau xyoo 1970, kev tsim kho cov kab sib txuas lus fiber ntau los ntawm Corning pib, lees paub tias yog qhov pib ntawm kev lag luam tshiab. Niaj hnub no, txoj kev loj hlob ntawm fiber optic technologies ua ntej ntawm lwm cov sectors ntawm lub ntiaj teb no kev lag luam, nce fiber ntau tso zis los ntawm 40% ib xyoos twg!
Tus tsim tawm loj thiab tso cai ntawm cov thev naus laus zis no - Tebchaws Meskas - tau tsim 10 lab kilometers ntawm optical fiber nyob rau hauv xyoo tas los no, uas yog sib npaug rau 250 girths ntawm lub ntiaj teb ntawm txoj kab nruab nrab. Fiber-optic kev sib txuas lus kab yog ib qho chaw zoo tagnrho rau kev sib pauv ntaub ntawv. Lawv cov cuab yeej - qhia cov teeb liab rau ntau lab tus neeg siv khoom - tsis muaj lwm txoj hauv kev. Lawv, zoo li cov hlab ntsha xaus, xa cov teeb liab ntawm cov teb chaws, lub teb chaws, cheeb tsam, hauv nroog, los ntawm kev lag luam, tsim cov kab kev sib txuas lus fiber ntau (FOCL).
Lawv cov khoom nquag hloov pauv, zoo li, nthuav dav lub teeb liab kis tau tus mob. Cia peb teev lawv. Lub hauv paus ntawm monochrome-coherent hluav taws xob yog laser.
Modulators tsim lub teeb nthwv dej uas sib txawv raws li cov qauv ntawm cov teeb liab tawm tswv yim. Multiplexers ua ke thiab tshem tawm cov teeb liab. Regenerators rov kho qhov tsis zoo ntawm cov pulse optical. Lub photodetector ua qhov kev hloov pauv rov qab: lub teeb - hluav taws xob. Fiber-optic kev sib txuas lus kab muaj qhov zoo tshaj plaws: lawv yooj yim rau nruab siv couplings, muaj peev xwm xa cov teeb liab teeb pom kev zoo uas tsis muaj qhov poob, thiab tiv thaiv cov ntaub ntawv ntseeg tau.
Ntawm cov kab kev sib txuas lus thoob ntiaj teb fiber ntau, cov transatlantic muaj ntau tshaj plaws. Lawv txuas cov teb chaws Europe nrog Tebchaws Meskas thiab Canada.
Qhov loj tshaj plaws nyob rau hauv ntev yog trans-Pacific, coj US los ze rau Nyiv, Tuam Tshoj, Kaus Lim Qab Teb, Hong Kong, Hawaii. Kev tso cov kab sib txuas lus fiber ntau yog ua los ntawm cov tsev hais plaub tshwj xeeb. Russia kuj koom nrog cov haujlwm zoo sib xws. Xyoo tas los, kev tsim kho tau pib ntawm txoj kab txuas ntawm Kamchatka, Sakhalin thiab Magadan. Nco ntsoov tias rau pob txha caj qaum FOCL, fiber ntau nrog cov tub ntxhais / cladding loj ntawm 1.3-1.55 microns yog siv.
Regional FOCLs nruab nrab ntawm cov chaw nruab nrab thiab cov cheeb tsam thiab hauv nroog yog qhov tseem ceeb rau lub xeev. Lawv yog tsim los ntawm gradient fibers - 50/125 microns. Cov tuam txhab loj tau siv cov kab sib txuas lus fiber ntau los txhim kho kev tswj hwm hauv "chaw ua haujlwm hluav taws xob" qauv, nrog rau kev tsim khoom siv hluav taws xob.
yam ntxwv,uas tsim lub teb chaws (ntawm lawv Nyiv, England, Ltalis, Fabkis) tsuas yog siv fiber ntau optical hauv kev tsim kho. Cov theem hauv cheeb tsam sib haum mus rau qhov nrawm dua, qhov poob qis dua, ib hom kab hluav taws xob. Ib tug pheej yig dua thiab yooj yim rau nruab multi-mode cable yog haum rau lub lag luam. Optical fiber yog siv los ua qhov kub, siab, voltage sensor. Nws yog siv nyob rau hauv hydrophones, sonar, seismology, thiab navigation. Siv hauv kev ruaj ntseg thiab lub tswb.
Summing li, nws yuav tsum tau hais txog qhov tseeb hais tias qhov kev siv tshuab no nyob deb ntawm kev qaug zog, nyob rau nruab nrab ntawm nws txoj kev loj hlob. Cov tuam txhab tsim khoom lag luam CISCO, 3COM, D-LINK, DELL, ALLIED TELESYN hloov kho cov khoom lag luam optoelectronic hauv txhua txoj hauv kev. Ib hom tshiab ntau hom (thev naus laus zis thev naus laus zis) kho qhov muag fiber ntau nrog kev ua haujlwm tau zoo tau tsim. Optical connectors tau tsim nrog cov qauv tsim yooj yim (cov tam sim no xav tias qhov tseeb micron). Txhawm rau kom muaj txiaj ntsig zoo dua lub teeb liab kis tau tus mob, lub tswv yim tshiab planar laser diodes nruab nrog ntsug resonator tau tsim. Kev tshawb fawb tseem tab tom mus rau hauv kev tsim kab ke.
